I just got a new triple monitor setup (Dell S-Series 27-Inch Screen LED-Lit Gaming Monitor (S2719DGF); QHD (2560 x 1440) up to 155 Hz; 16:9; 1ms Response time). See my current build below, is the CPU/Mobo a bottleneck for 2K 1440P Gaming on my rig?
Case: NZXT Phantom 820
Mobo: AsRock Z87 OC Formula/ac
GPU: EVGA GeForce GTX 1080 Ti FTW3
PSU: PC Power & Cooling MKIII 1200W
CPU: I7-4790K 4.0GHz
RAM: G.Skill Trident X Series 32GB DDR3 2666
AIO Cooler: NZXT Kraken X61
Case: NZXT Phantom 820
Mobo: AsRock Z87 OC Formula/ac
GPU: EVGA GeForce GTX 1080 Ti FTW3
PSU: PC Power & Cooling MKIII 1200W
CPU: I7-4790K 4.0GHz
RAM: G.Skill Trident X Series 32GB DDR3 2666
AIO Cooler: NZXT Kraken X61